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Photo and Video Chronology - Kīlauea - April 7, 2019

By Kīlauea April 7, 2019

Volcano Watch: Probing volcanic air pollution

 

Media
small amounts of sulfur dioxide
Sources/Usage: Public Domain. View Media Details
Only small amounts of sulfur dioxide (SO2) and hydrogen sulfide (H2S) are currently being released from Kīlauea, but they chemically react with each other (oxidation-reduction reaction) to form the bright yellow sulfur deposits visible on the crater walls within Halema‘uma‘u. The current low sulfur emission rates at Kīlauea have contributed to beautifully clear skies in downwind areas. 
Media
image related to volcanoes. See description
Sources/Usage: Public Domain. View Media Details
A telephoto view of the sulfur deposits forming on the walls of Halema‘uma‘u. USGS photo by C. Parcheta, 04/02/2019.

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